Thanks to our diligent scholars here at f95, I've been prying a little bit and have a condensed list of what I think is still doable.
Switching clothes- No-go. I'm assuming they all got taken out since the touching animations weren't even implemented like before.
Switching out enemies- Should be good. The hypnotist and pro molester are at least still there, though their icons got removed for whatever reason and hypnotists force you to click after the animation plays.
Switching levels- Also still good. I was trying out the yellow line and that's working fine, though I might see if the second level is still up and running.
Changing clothes state and adding blindfolds- All still there. "Eyemask" is still listed and works the same, "ClothesState" is still there, just no clothes types.
Adding skill points and buffs- All clear, as long as you get some points and buy the upgrades beforehand, you're good.
The only tedious part is moving the file back and forth through encryption/decryption, but if you're okay with that, the world is (mostly) still your oyster!